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Proceedings Article

Precision astrometry with adaptive optics

[+] Author Affiliations
P. B. Cameron, M. C. Britton, S. R. Kulkarni

California Institute of Technology (USA)

Proc. SPIE 7015, Adaptive Optics Systems, 70150A (July 07, 2008); doi:10.1117/12.789811
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From Conference Volume 7015

  • Adaptive Optics Systems
  • Norbert Hubin; Claire E. Max; Peter L. Wizinowich
  • Marseille, France | June 23, 2008

abstract

We discuss the limits of ground-based astrometry with adaptive optics based on experiments using the core of the Galactic globular cluster M5. We have recently achieved ⪅ 100microarcsecond astrometric precision and accuracy at the Hale 200-inch telescope. Here we apply the same experimental design considerations and optimal estimation technique to explore the astrometric precision of the Keck II telescope. We find that high-precision astrometry at ≈ 50 microarcsecond level is possible at Keck in 20 seconds. We discuss the potential of differential astrometry for current and next generation large aperture telescopes based on these results.

© (2008) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

P. B. Cameron ; M. C. Britton and S. R. Kulkarni
"Precision astrometry with adaptive optics", Proc. SPIE 7015, Adaptive Optics Systems, 70150A (July 07, 2008); doi:10.1117/12.789811; http://dx.doi.org/10.1117/12.789811


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